SES codes
P0172 - Fuel Trim System Rich Bank 1
P0175 - Fuel Trim System Rich Bank 2
I'm assuming my car is running pig rich? Or do these mean something else?
Thanks!
Your car can only adjust up to 25%. If the O2 sensors see a lean or rich condition which requires a fueling adjustment more than 25% than you will set an SES light.
Yes, more than likely, your car is pig rich.




